Paper box and the like



1 Oct. 4, 1927.. Y

' S. BERGSTEIN PAPER BOX AND THE LIKE Filed Dec. 20. 1926 1 J 1 1HBLHLIITPL:

. INVENTOR.

1 Fig. 1 is a view illustrating the improved sists in the'serrated edgedof the inner porm ly formed carton.

1 turing stresses or to the pressure of the .con- 7 2. Paper articles ofmanufacture, includ joint construction comprised in the invenalong theedge of one of said portions.

Patented Get. 4, 1927. y I H i r I,

UNIT, STTES PATE T QFFiCE.

SAMUEL BERGSTEIN, or MIiDDLETOWN, OI-IIO,' AssIeiNoR ITOY'IHE INTERSTATEIFOLD- me BOX COMPANY, OF MIDDLETOWN, OHIO. 7

PAPER BOX AND THE LIKE. I 7 Application filediDecember 20,- 1926. SerialNo. 155,841.

This invention relates to improvements in in the opposite direction, acorner of the box a 5 paper cartons, or the like. as shown in Fig. 3being formed on the me-' In the accompanying drawings which dial line.serve to illustrate the invention: The main feature of the improvement@011.

Construction of the box blank; I tion of the jointv which acts to renderthe 55 Fig. 2 is a view illustrating a tube formed joint yieldable tothe pressure the'reon'by from the blank shown in Fig. 1; V the-contents,,or from any" source, without Fig. 3 is a sectional view of thecompletecausing the joint to split open.- 3

i The joint; as herein shown and described Figs. 4 and 5 are viewsillustrating modimerely serve for illustrating the improved e0fications. I i construction It-will be obvious that both The inventionrelates particularly to imthe inner and outer overlapping portionsproved joint construction inpaper cartons, may be serrated to efl'ectgreater flexibility V paper boxes, andarticles of similar construcof thejoint, also that theserrations may be 1 tion. 7 used on singleoverlapping joints-with like Containers of this character used for bulkyeffect, the several modifications being "illusor heavy articlesfrequently develop weaktrated in Figs. 4 and 5. -InFig; 4 a double nessalong the adhesive joints, the joints overlapping joint is shown withdouble sere" 20 breaking open under the outward pressure rated edges.-In Fig; 5a single joint is of the contents, thus impairing or destroyshown with serrate'djedge. ing the value of the containers forprotecting 7 It will be obvious that various forms of v i the contents vserrations may beused for practicing the in- This condltion 15 caused,where heavy ventlon. g j t 25. paper stocks are used for making the con-Having described my lnventlon, I claim:

tainers, by the stiffness of the stock, more 1. Paper articles ofmanufacture, includespecially where the edges of the material ing anoverlappin adhesive joint comprising j i overlap at the joints, thuslacking flexibility serrations along't e edge of onset theover- I toadapt the joints to yield-to the manufaclapping portions. f

tents when the containers are filled, with the ing an overlappingadhesive joint compris- O result that the joints break open or split ingportions extended oppositely'one relative along the adhesive seams asstated. tothe otherlaterally of the longitudinal me The difiiculty isovercome by the improved dial line of the joint, and serrations formedtion which, without adding materially to the 3. Paper articles ofmanufacture, includ-f 5 cost of production, results in containers ing anoverlapping adhesive joint compriswhich are free of this weakness. ingserrations formed along the opposite The improved joint as illustratedin the overlapping edges ofthe joint. g drawings consists of a doubleoverlap joint 4. Paper articles of manufacture, includextended onopposite sides of the medial ing an overlapping'adhesivejoint, theIonfolding line 1, extended longitudinally of the gitudinal medial lineof the; joint coinciding joint. with a corner of the article, theoverlapping The jointas here shown is wider than or-' port ons beingextended overand oppositely 45 dinary overlap joints thus providing forthe e a y of medlal 11116, a s t s outer overlapping portion 2 to beextended P along dg 9 of d 1 596 over and beyond the medial line of thejoint. I I

j The inneroverlapping portion 3 in like man- V In testlmony f f m g wner extends over and beyond the medialline j SAMUEL'BERGSTEIN,

